Results 41 to 50 of about 177 (133)

Flow Simulation of Various Riblet Shapes and a Uniform Model for Boundary Layer

Journal of Applied Fluid Mechanics, 2018
Various riblet shapes are simulated through the computational fluid dynamics method for the elucidation of riblet effects on turbulent boundary layers and skin friction reduction.
Y. Yu, X. Ren, X. Li, C. Gu
doaj  

The Effect of variation Longitudinal Ribs Height in Spanwise Direction on Flow and Heat Transfer Characteristics in a Rectangular Duct [PDF]

Engineering and Technology Journal, 2016
The present work has investigated numerically and experimentally the effect of a streamwise riblet on the flow and heat transfer characteristics for fully developed turbulent flow in a rectangular duct heated with constant heat flux for Reynolds number ...
Ekhlas M. Fayyadh, Moayed R. Hasan, Sahira H. Ibrahim   +2 more
doaj   +1 more source

Adult Suicidality and Therapeutic Engagement: A Systematic Review

Clinical Psychology &Psychotherapy, Volume 32, Issue 6, November/December 2025.
ABSTRACT Background Engagement in mental health care among adults with suicidality remains significantly low, with limited understanding of the factors influencing treatment retention and dropout. Aims Exploring the factors influencing therapeutic engagement, such as attendance, active participation and completion of therapeutic tasks among adults with
Chloé Muscat, Frédéric Verhaegen, Christophe Clesse   +2 more
wiley   +1 more source

Drag Reduction on Microstructure Surfaces

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
In this study, experimental work in the literature about friction on bird-feather like structures has been reviewed and one of these was modeled by using CFD (Computational Fluid Dynamics) to obtain minimum grid parameters.
Hasan Rıza Güven, Ahmet İlyas Kodal, Şule Kapkın   +2 more
doaj   +1 more source

Aerodynamic enhancement of wind turbine blades through Peregrine falcon‐inspired surface designs

Environmental Progress &Sustainable Energy, Volume 44, Issue 6, November/December 2025.
Abstract As global energy demands increase, enhancing renewable energy technologies, particularly wind turbines, is essential to meet sustainability goals. However, achieving higher efficiency remains challenging due to limitations in traditional blade designs. This study explores an innovative solution by applying biomimetic principles inspired by the
Yasin Furkan Gorgulu, Mustafa Arif Ozgur
wiley   +1 more source

Numerical Analysis of the Effects of Riblets on Drag Reduction of a Flat Plate

Journal of Applied Fluid Mechanics, 2018
In recent years, marine transportation as well as land and air transportation has become in the centre of attention. There has been an attempt to reduce the drag exerted on vessels by various methods, such as rough surfaces and base bleed.
A. Heidarian, H. Ghassemi, P. Liu
doaj  

Shark-inspired riblet design and optimization for drag reduction in drinking water distribution pipes across varying flow rates

Water Research X
Drinking water distribution systems (DWDS) experience significant energy losses due to turbulence-induced drag. While shark-inspired riblet surfaces have been shown to reduce drag in controlled conditions, their effectiveness in DWDS remains uncertain ...
Mirvahid Mohammadpour Chehrghani, Jamal Seyyed Monfared Zanjani, Doekle Yntema, David Matthews, Matthijn de Rooij   +4 more
doaj   +1 more source

Light‐Fueled In‐Operando Shape Reconfiguration, Fixation, and Recovery of Magnetically Actuated Microtextured Covalent Adaptable Networks

Advanced Materials, Volume 37, Issue 39, October 2, 2025.
A covalent adaptable network with dynamic disulfide bonds (DS‐CAN) can rearrange its molecular topology through heating or UV irradiation. When combined with ferromagnetic particles, its photoresponsiveness at room temperature enables contactless, spatiotemporal regulation of dynamic bond exchanges during magnetomechanical actuation.
Yeomyung Yoon, Hojun Moon, Woongbi Cho, Dongwook Lee, Sohdam Jeong, Jeong Jae Wie, Chae Bin Kim   +6 more
wiley   +1 more source

Numerical investigation of passive control flow to improve tire hydroplaning performance using a V-riblet non-smooth surface

Advances in Mechanical Engineering, 2017
As one of the major causes of traffic accidents, tire hydroplaning is a key driver safety concern. A tire model 205/55R16 was employed in this study, and a virtual simulation of a deformed half-tire domain for calculating hydroplaning speed was built by ...
Haichao Zhou, Huihui Zhai, Yangmin Ding, Guolin Wang   +3 more
doaj   +1 more source

Role of the Setae in an Ectoparasitic Seal Louse in Reducing Surface Drag: Numerical Modeling Approach

Advanced Theory and Simulations, Volume 8, Issue 10, October 2025.
The seal louse Echinophthirius horridus has uniquely shaped setae that may reduce drag during its host's dives. Using numerical simulations, this study demonstrates that their natural inclination promotes vortex formation, minimizing friction and energy loss. These findings provide insights into biological surface adaptations and may inspire the design
Anika Preuss, Stanislav N. Gorb, Alexander Kovalev, Alexander E. Filippov   +3 more
wiley   +1 more source